Finding the Fourth Proportional to 306,030,163.80, 459,045,245.70 and 286,898,287.80
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Solution
The fourth proportional to 306,030,163.80, 459,045,245.70 and 286,898,287.80 is: 430,347,431.70
Step by Step Solution
- Step 1: Write the proportion equation
306,030,163.80 : 459,045,245.70 = 286,898,287.80 : x - Step 2: Convert to fraction form
306,030,163.80/459,045,245.70 = 286,898,287.80/x - Step 3: Cross multiply
306,030,163.80x = 459,045,245.70 × 286,898,287.80 - Step 4: Simplify right side
306,030,163.80x = 131,699,295,014,060,320 - Step 5: Solve for x
x = 131,699,295,014,060,320/306,030,163.80 - Step 6: Final answer
x = 430,347,431.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.